Coupling



C. H. PELTON.

CGUPLING.

APPLICATION man kAmm. 1920,

1,383,017. PatentedJune 28, 1921.

2 SHEETS-SHEET l.

C. H. PELTON.

lCOUPLING.

APPLICATION 'FILED APH.26, i920.

1,383,01 7. Patented June 28, 1921.

2 SHEETS-SHEET 2. W( g N D y g r/ `UNITEDL STA-TES PATENT o FFicE.

CHARLES H, rELToN, or SPRINGFIELD, onto, AssreivoR `'ro Tiinriioiuas MANU- FACTURING comm, or SPRINGFIELD, entro,` A` coRioRA'rioivor0R10 To'wlljwliomt't may concern: Y

Be Ait known that I, CHARLES H. PELTON, a citizen of the United States, residing at Springfield, in the Vcounty of Clark and State of Ohio, have invented `certain new and usefulfImprovementsin Couplings, of which the following is a speciiication, reference being had -therein to the accompanying drawing. j

. This invention relates. to'improved couplings, having particular reference to couplings for farm implements, such as grain drills, cultivators, mowers,` etc., whereby theV same may be adapted to be drawn bya tractor.

to provide a coupling of simple, durable construction. which `will withstand the heavy strains brought upon it incident to tractor,

operationof the-i1nplement,rand which will be adjustable relative'to its connection with the implement to eii'ect regulation oi the soileengaging devices relative to the depth the same will enter the ground.

In the accompanying drawings Figure 1 is a perspective view of a grain drill embodying my invention;

Fig. 2 is a longitudinal vertical section of the draw head and cooperating parts;

Fig. 3 is a transverse sectional view taken on the line mof Fig. 2;

Fig. 4 is a plan view of a portion of the dra-w head, particularly illustrating the shoulders and recesses; and

Fig. 5 is a sectional View of the grain drill frame with my invention applied thereto in full lines.

In the drawings the draft frame members 1 are preferably formed of angle iron and may be attached to the main trame of the drill in any suitable manner, the usual construction consisting in bolting the draftframe and main fra-nie rigidly together so that the combined structure will be in effeet a single frame.

As here shown the frame members 1 are suitably spaced apart at their forward eX- tensions by spacing blocks 2 and are secured one to the other by bolts 3 which extend through the spacing blocks 2.

An upper bar or frame member 4, as shown, is used in connection with the frame 1, being connected thereto intermediate its ends by an arched bracket 5. Secured to COUPLING.

Specification of Letters APatent. Patentgd June 28, 1921;

Application filed April `26, 1920. Serial No. 376,642. l

coupling plates 6, which are secured to the bar 4 by means of a bolt' 7,-the plates thus being-made a fixed part of the draft-frame.

`The draw-head, best shownin Fig.` 2,`

consists of va body portion 8 which has a. longitudinal aperture 9 -formed therein, eX- tending inwardly from the rear end tliereof to receive a compression spring 10. A bolt lliextends through the front end of the draw-head and the spring 10 and is en" gaged with the spring at its rear end byA nuts l 12 and retaining washer 13, the opposite end The particular object of the invention is.

' ceive the respective plates 6 therein, thus forming aI close tting connection when the parts are assembled between the frames 1, as shown in Fig.` 3.

The coupling adjusting plates 6 are provided with apertures 17 arranged at different elevations, and the draw-head is provided with an aperture 18 extending transversely therethrough and adapted to be brought into alinement with any two opposite apertures 17 in the plates 6; the parts being adapted to be secured in such relation by a clipbolt 19.

From the foregoing detailed description it will be understood that the draw-head may be adjusted vertically relative to the plates 6, to the extent provided for in the length of the plates and the number of adjusting apertures provided therein, merely by changing the position of the slip-bolt. In all ofsaid positions of vertical adjustment the drawhead will be held in engagement with the plates 6 by shoulders 20 formed at the opposite edges of the depressions 16. The spring 10 acts to give a degree of flexibility to the coupling and to some extent also as a shock absorber to relieve the drawn implement of the direct shocks transmitted through the coupling from the tractor.

Having thus fully described my invention,

what I claim as new and desire to secure by Letters Patent, is Y 1. In a coupling, the combination, with a draft frame consisting of two opposite, for- Wardly-extending frame members, of opposite adjusting plates supported between said members, and a draft-head having a spring-V mounted, longitudinally operable coupling connection suppo-rted therein and having depressions formed in the opposite side faces thereof, whereby said head may be mounted onsaid plates to have vertical-.adjustment relatively thereto.

Y2. In a coupling, opposed adjusting plates, adraft head mounted for vertical adjustment therebetween, and means adjustably engaged with the platesV for drawing the latter'together to rigidly clamp the draft head theremounted foradjustmentin a vertical planel between in various horizontal positions.

3. vIn a coupling, a vertically disposed'support, a horizontally disposed drafthead bodily on ,said support, means rigidly securing the draft-head in adjusted positions on the support, means lfor maintaining the draft-head in a horizontal plane during its movementfrom one position of adjustment to another position ofV adjustment, alcoupling member, and -an interposed yieldable shock absorbing device connecting the. draft-head 4. Ina coupling, a support, a draft-head and coupling member. i

connection between said draft head and the coupling member.

6. In a coupling, opposed frame members, n

opposed adjusting plates carried thereby, a superposed frame member securedl to and constituting a spacing element for the ad-V justing plates, and a draft head` mounted for vertical adjustment between said plates. l

7. In a coupling, opposed vertlcally disposed adjusting plates, a horizontally disposed draft head mounted for sliding adjustment in a vertical plane bodily between saidV plates, means rigidly securing the draft head in adjusted position with respect tothe plates, a horizontally movablecouplin'g member, and a yieldable shock absorbing connec-` tion intermediate the draft head and coupling member.` Y

In testimony whereof I aix my signature.

CHARLES I-I; PELTON. 

